662531133123 has 24 divisors (see below), whose sum is σ = 957829017600. Its totient is φ = 441300110064.

The previous prime is 662531133109. The next prime is 662531133127. The reversal of 662531133123 is 321331135266.

662531133123 is a `hidden beast` number, since 6 + 6 + 2 + 5 + 311 + 331 + 2 + 3 = 666.

It is not a de Polignac number, because 662531133123 - 2⁶ = 662531133059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (662531133127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58734598 + ... + 58745876.

It is an arithmetic number, because the mean of its divisors is an integer number (39909542400).

Almost surely, 2^662531133123 is an apocalyptic number.

662531133123 is a deficient number, since it is larger than the sum of its proper divisors (295297884477).

662531133123 is a wasteful number, since it uses less digits than its factorization.

662531133123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16431 (or 16428 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

Adding to 662531133123 its reverse (321331135266), we get a palindrome (983862268389).

The spelling of 662531133123 in words is "six hundred sixty-two billion, five hundred thirty-one million, one hundred thirty-three thousand, one hundred twenty-three".